The original feature in this sentiment is the conscious feeling of the protector and the protected. Our passions cannot subsist in lazy indolence; passion and action must operate on each other; passion must produce action, and action give strength to the tide of passion. We do not vehemently desire, where we can do nothing. It is in a very faint way that I entertain a wish to possess the faculty of flying; and an ordinary man can scarcely be said to desire to be a king or an emperor. None but a madman, of plebeian rank, falls in love with a princess. But shew me a good thing within my reach; convince me that it is in my power to attain it; demonstrate to me that it is fit for me, and I am fit for it; then begins the career of passion. In the same manner, I cannot love a person vehemently, and strongly interest myself in his miscarriages or success, till I feel that I can be something to him. Love cannot dwell in a state of impotence. To affect and be affected, this is the common nature I require; this is the being that is like unto myself; all other likeness resides in the logic and the definition, but has nothing to do with feeling or with practice. What can be more clear and sound in explanation, than the love of a parent to his child? The affection he bears and its counterpart are the ornaments of the world, and the spring of every thing that makes life worth having. Whatever besides has a tendency to illustrate and honour our nature, descends from these, or is copied from these, grows out of them as the branches of a tree from the trunk, or is formed upon them as a model, and derives from them its shape, its character, and its soul. Yet there are men so industrious and expert to strip the world we live in of all that adorns it, that they can see nothing glorious in these affections, but find the one to be all selfishness, and the other all prejudice and superstition. The love of the parent to his child is nursed and fostered by two plain considerations; first, that the subject is capable of receiving much, and secondly, that my power concerning it is great and extensive.